During the past few years, stock exchange investors confront numerous problems in terms of legal, environmental issues, etc. In this paper, we present an empirical study to detect important issues as barriers for investment in Tehran Stock Exchange. The study has categorized the issues into two groups of real world and legal issues. Since there are different issues involved as major barriers, the study uses analytical hierarchy process to rank them. The study extracts 18 important factors, which influence investors’ participation in Tehran Stock Exchange and using Borda method, prioritize them. The results of the survey indicate that in terms of real issues, Increase in quality of firms Financial Statement is number one priority followed by Increase stock exchange and agents’ proficiency and electronic equipment, Unchangeable investment market rules and bounding organization managers to flow them and Strict supervision on agents’ activities. In terms of legal issues, good supervision of provisions to force firms to reveal information correctly and restrict their secret bargaining is the most important factor followed by Using indirect investment guideline instead of direct investment, Increase in quality of firms’ Financial Statement and Investors’ training toward their rights.

Human resources are believed the primary sources of building advanced technological enterprises in today & apos; s world. Improving productivity in human resources plays essential role on empowering employees. The proposed model of this paper uses a hybrid of Burda and DEMATEL to find important factors for improving manpower productivity. The proposed model of this paper uses DEMATEL technique to find cause and effect factors and propose a linear programming technique to find important factors influencing productivity improvement. The results of our survey indicate that job enrichment, service training and job enlargement and quality of work life and training embedded are among the most important factors improving manpower productivity promotion.